CN109529522A - A kind of ammonia still diffused gas purification process technique - Google Patents
A kind of ammonia still diffused gas purification process technique Download PDFInfo
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- CN109529522A CN109529522A CN201811538258.1A CN201811538258A CN109529522A CN 109529522 A CN109529522 A CN 109529522A CN 201811538258 A CN201811538258 A CN 201811538258A CN 109529522 A CN109529522 A CN 109529522A
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- ammonia still
- diffused gas
- gas
- still diffused
- ammonia
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/002—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by condensation
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/14—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by absorption
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- Engineering & Computer Science (AREA)
- Analytical Chemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Treating Waste Gases (AREA)
- Gas Separation By Absorption (AREA)
Abstract
The present invention relates to a kind of ammonia still diffused gas purification process techniques, belong to coking and diffuse treating tail gas technical field.The following steps are included:Ammonia still diffused gas enters to condensate cooler (5) through ammonia still diffuse channel (2), ammonia still release valve (3), condensate cooler inlet tube (4)；Condensation process is carried out to ammonia still diffused gas；Enter washing column (7) by air-introduced machine (6) through tail gas through condensation process ammonia still diffused gas；Spray cleaning processing is carried out to ammonia still diffused gas；The ammonia still diffused gas of purified processing enters mist trap (9) and carries out mist trapping processing；Ammonia still diffused gas through mist trapping processing is diffused through atmosphere duct (10).The technical pattern is simple, achievees the purpose that environmental protection, emission reduction, realizes that Ammonia recovery utilizes, and remarkable in economical benefits has promotional value.
Description
Technical field
The present invention relates to a kind of ammonia still diffused gas purification process techniques, belong to coking and diffuse treating tail gas technical field.
Background technique
Ammonia still is the key equipment for handling distilled ammonia wastewater, in ammonia still shutting down and during falling to use, need to open release pair
Ammonia still carries out steam blowing, a large amount of ammonias of entrainment with steam, small oil droplet in purge, ammonia still process release purging pollution environment, corruption
It loses equipment, influence worker health.Ammonia is also one of the raw material for synthesizing sulphur ammonium simultaneously, and simple purging release reduces sulphur ammonium yield.
It is therefore desirable to improve to traditional ammonia still Purge methods, R & D design one kind, which can be implemented to purge ammonia still, is diffused
The treatment process of gas progress Recovery Purifying.
Technology contents
Technical problem to be solved by the invention is to provide a kind of ammonia still diffused gas purification process techniques, realize to ammonia still
The Recovery Purifying of diffused gas is handled.
The technical solution used in the present invention is:
A kind of ammonia still diffused gas purification process technique, it is characterised in that the following steps are included:
(1) ammonia still diffused gas enters to cold through ammonia still diffuse channel, ammonia still release valve, condensate cooler inlet tube
Solidifying cooler；
(2) condensation process is carried out to ammonia still diffused gas；
(3) washing column is entered by air-introduced machine through tail gas through condensation process ammonia still diffused gas；
(4) spray cleaning processing is carried out to ammonia still diffused gas；
(5) the ammonia still diffused gas of purified processing enters the progress mist trapping processing of mist trap；
(6) the ammonia still diffused gas through mist trapping processing is diffused through atmosphere duct.
Ammonia still diffused gas purification process technique as described above, the condensate cooler is shell and tube cooler, to follow
Ring water walks pipe for cooling medium, and release makes shell leave with rage and is in.
Ammonia still diffused gas purification process technique as described above, condensate cooler internal vertical direction is set gradually
Baffle plate, cooling medium enter sulphur ammonium underground emptying groove by bottom blow-down pipe.
Ammonia still diffused gas purification process technique as described above, the washing column gas access are arranged above side wall.
Ammonia still diffused gas purification process technique as described above, the spray cleaning processing are as follows: ammonia still diffused gas
It is downwardly into center spray sleeve after into washing column inside to move from bottom to top, spray washing liquid is through washing column washing pump by washing
Net top of tower central tube two sides carry out inversely spraying washing to gas.
Ammonia still diffused gas purification process technique as described above, the mist interior are multiple-layer overlapped shutter
Structure, setting circulation water spray at gas access.
Ammonia still diffused gas purification process technique as described above, condensate cooler is worked off one's feeling vent one's spleen after the condensation process processing
26-27 DEG C of temperature.
Ammonia still diffused gas purification process technique as described above, it is described that ammonia still diffused gas is carried out at spray cleaning
Washing column washing pump spray flow is 21-25m when reason3/h。
Ammonia still diffused gas purification process technique as described above, the mist trap follow when mist trapping processing
Ring water spray amount is 10-11.5m3/h。
The beneficial effects of adopting the technical scheme are that ammonia still process dispersing gas can be led to washing column by this technology
Washing, purifying processing, avoids ammonia still process diffused gas and is directly entered atmosphere pollution environment, realizes Ammonia recovery utilization.The technology
Structure is simple, achievees the purpose that environmental protection, emission reduction, realizes that Ammonia recovery utilizes, and remarkable in economical benefits has promotional value.
Detailed description of the invention
Fig. 1 is implementation schematic diagram of the invention；
In figure: ammonia still 1, ammonia still diffuse channel 2, ammonia still diffuse valve 3, condensate cooler inlet tube 4, condensate cooler
5, tail gas air-introduced machine 6, washing column 7, washing column washing pump 8, mist trap 9, atmosphere duct 10, sulphur ammonium underground emptying groove 11,
Underground emptying groove submerged pump 12, mother liquor tank 13, center spray sleeve 14, washing column top center pipe 15, baffle plate 16, gas enter
Mouth 17.
Specific embodiment
The present invention is described in further details with attached drawing combined with specific embodiments below.
As shown in connection with fig. 1, a kind of ammonia still diffused gas purification process technique, it is characterised in that the following steps are included: from
On the ammonia still diffuse channel 2 of ammonia still 1 at ammonia still release valve 3, connection condensate cooler inlet tube 4 to condensate cooler
5, the gases exit line of condensate cooler 5 is connected to 6 inlet pipeline of tail gas air-introduced machine, 6 outlet conduit of tail gas air-introduced machine with wash
Net 7 gas feed of tower is connected, and 7 gases exit line of washing column is connected to mist trap 9, and the gas of mist trap 9 is put
It is dissipated to atmosphere 10, the condensate liquid of condensate cooler 5 enters sulphur ammonium underground emptying groove 11, then will be cold by underground emptying groove submerged pump 12
Lime set is sent to mother liquor tank 13.
Embodiment 1
1. the operation of 1 shutting down of ammonia still need it is open open ammonia still and diffuse valve 3 when dissipating purging, open tail gas air-introduced machine 6,
Washing column washing pump 8, mist trap 9.
2. ammonia still diffused gas diffuses valve (3), condensate cooler import through ammonia still diffuse channel (2), ammonia still
Pipe (4) enters to condensate cooler (5), carries out condensation process to ammonia still diffused gas, control loop water flow is adjusted to cold
26 DEG C of gas outlet temperature of solidifying cooler (5)；
3. entering washing column (7) by air-introduced machine (6) through tail gas through condensation process ammonia still diffused gas, to ammonia still dispersing gas
Body carries out spray cleaning processing, and washing column washing pump (8) spray flow is 21m3/h；
4. the ammonia still diffused gas of purified processing, which enters mist trap (9), carries out mist trapping processing, trapped through mist
The ammonia still diffused gas of processing is diffused through atmosphere duct (10), and mist trap recirculated water spray flow is 10 m3/h.Discharge ammonia
Gas concentration is 1.128mg/m3.(ammonia emission concentration requires≤10 mg/m in GB16171-20123)
Embodiment 2
1. the operation of 1 shutting down of ammonia still need it is open open ammonia still and diffuse valve 3 when dissipating purging, open tail gas air-introduced machine 6,
Washing column washing pump 8, mist trap 9.
2. ammonia still diffused gas diffuses valve (3), condensate cooler import through ammonia still diffuse channel (2), ammonia still
Pipe (4) enters to condensate cooler (5), carries out condensation process to ammonia still diffused gas, control loop water flow is adjusted to cold
26.2 DEG C of gas outlet temperature of solidifying cooler (5)；
3. entering washing column (7) by air-introduced machine (6) through tail gas through condensation process ammonia still diffused gas, to ammonia still dispersing gas
Body carries out spray cleaning processing, and washing column washing pump (8) spray flow is 22m3/h；
4. the ammonia still diffused gas of purified processing, which enters mist trap (9), carries out mist trapping processing, trapped through mist
The ammonia still diffused gas of processing is diffused through atmosphere duct (10), and mist trap recirculated water spray flow is 10 .3m3/h.Discharge
Ammonia concentration is 0.815mg/m3.(ammonia emission concentration requires≤10 mg/m in GB16171-20123)
Embodiment 3
1. the operation of 1 shutting down of ammonia still need it is open open ammonia still and diffuse valve 3 when dissipating purging, open tail gas air-introduced machine 6,
Washing column washing pump 8, mist trap 9.
2. ammonia still diffused gas diffuses valve (3), condensate cooler import through ammonia still diffuse channel (2), ammonia still
Pipe (4) enters to condensate cooler (5), carries out condensation process to ammonia still diffused gas, control loop water flow is adjusted to cold
26.4 DEG C of gas outlet temperature of solidifying cooler (5)；
3. entering washing column (7) by air-introduced machine (6) through tail gas through condensation process ammonia still diffused gas, to ammonia still dispersing gas
Body carries out spray cleaning processing, and washing column washing pump (8) spray flow is 23m3/h；
4. the ammonia still diffused gas of purified processing, which enters mist trap (9), carries out mist trapping processing, trapped through mist
The ammonia still diffused gas of processing is diffused through atmosphere duct (10), and mist trap recirculated water spray flow is 10 .6m3/h.Discharge
Ammonia concentration is 0.762mg/m3.(ammonia emission concentration requires≤10 mg/m in GB16171-20123)
Embodiment 4
1. the operation of 1 shutting down of ammonia still need it is open open ammonia still and diffuse valve 3 when dissipating purging, open tail gas air-introduced machine 6,
Washing column washing pump 8, mist trap 9.
2. ammonia still diffused gas diffuses valve (3), condensate cooler import through ammonia still diffuse channel (2), ammonia still
Pipe (4) enters to condensate cooler (5), carries out condensation process to ammonia still diffused gas, control loop water flow is adjusted to cold
26.6 DEG C of gas outlet temperature of solidifying cooler (5)；
3. entering washing column (7) by air-introduced machine (6) through tail gas through condensation process ammonia still diffused gas, to ammonia still dispersing gas
Body carries out spray cleaning processing, and washing column washing pump (8) spray flow is 24m3/h；
4. the ammonia still diffused gas of purified processing, which enters mist trap (9), carries out mist trapping processing, trapped through mist
The ammonia still diffused gas of processing is diffused through atmosphere duct (10), and mist trap recirculated water spray flow is 10 .9m3/h.Discharge
Ammonia concentration is 1.128mg/m3.(ammonia emission concentration requires≤10 mg/m in GB16171-20123)
Embodiment 5
1. the operation of 1 shutting down of ammonia still need it is open open ammonia still and diffuse valve 3 when dissipating purging, open tail gas air-introduced machine 6,
Washing column washing pump 8, mist trap 9.
2. ammonia still diffused gas diffuses valve (3), condensate cooler import through ammonia still diffuse channel (2), ammonia still
Pipe (4) enters to condensate cooler (5), carries out condensation process to ammonia still diffused gas, control loop water flow is adjusted to cold
26.8 DEG C of gas outlet temperature of solidifying cooler (5)；
3. entering washing column (7) by air-introduced machine (6) through tail gas through condensation process ammonia still diffused gas, to ammonia still dispersing gas
Body carries out spray cleaning processing, and washing column washing pump (8) spray flow is 25m3/h；
4. the ammonia still diffused gas of purified processing, which enters mist trap (9), carries out mist trapping processing, trapped through mist
The ammonia still diffused gas of processing is diffused through atmosphere duct (10), and mist trap recirculated water spray flow is 11.2m3/h.Discharge
Ammonia concentration is 0.960mg/m3.(ammonia emission concentration requires≤10 mg/m in GB16171-20123).
Claims (9)
1. a kind of ammonia still diffused gas purification process technique, it is characterised in that the following steps are included:
Ammonia still diffused gas diffuses valve (3), condensate cooler inlet tube (4) through ammonia still diffuse channel (2), ammonia still
Enter to condensate cooler (5)；
Condensation process is carried out to ammonia still diffused gas；
Enter washing column (7) by air-introduced machine (6) through tail gas through condensation process ammonia still diffused gas；
Spray cleaning processing is carried out to ammonia still diffused gas；
The ammonia still diffused gas of purified processing enters mist trap (9) and carries out mist trapping processing；
Ammonia still diffused gas through mist trapping processing is diffused through atmosphere duct (10).
2. ammonia still diffused gas purification process technique as described in claim 1, it is characterised in that the condensate cooler (5) is
Shell and tube cooler, walking pipe as cooling medium using recirculated water is in, and release makes shell leave with rage and is in.
3. ammonia still diffused gas purification process technique as claimed in claim 2, it is characterised in that in the condensate cooler (5)
Portion's vertical direction is set gradually baffle plate (16), and cooling medium enters sulphur ammonium underground emptying groove (11) by bottom blow-down pipe.
4. ammonia still diffused gas purification process technique as described in claim 1, it is characterised in that washing column (7) gas enters
Mouth (17) is arranged above side wall.
5. ammonia still diffused gas purification process technique as described in claim 1, it is characterised in that the spray cleaning processing are as follows:
Ammonia still diffused gas, which enters behind washing column (7) inside, to be downwardly into center spray sleeve (14) and moves from bottom to top, and spray is washed
It washs liquid and inversely spraying washing is carried out to gas by washing column top center pipe (15) two sides through washing column washing pump (8).
6. ammonia still diffused gas purification process technique as described in claim 1, it is characterised in that in the mist trap (9)
Portion is multiple-layer overlapped shutter, setting circulation water spray at gas access.
7. ammonia still diffused gas purification process technique as described in claim 1, it is characterised in that after the condensation process processing
26-27 DEG C of Outlet Gas Temperature of condensate cooler (5).
8. ammonia still diffused gas purification process technique as claimed in claim 5, it is characterised in that described to ammonia still dispersing gas
It is 21-25m that body, which carries out washing column washing pump (8) spray flow when spray cleaning processing,3/h。
9. ammonia still diffused gas purification process technique as claimed in claim 6, it is characterised in that the mist trap carries out
Recirculated water spray flow is 10-11.5m when mist trapping processing3/h。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201811538258.1A CN109529522A (en) | 2018-12-16 | 2018-12-16 | A kind of ammonia still diffused gas purification process technique |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811538258.1A CN109529522A (en) | 2018-12-16 | 2018-12-16 | A kind of ammonia still diffused gas purification process technique |
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| Publication Number | Publication Date |
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| CN109529522A true CN109529522A (en) | 2019-03-29 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113750766A (en) * | 2021-09-18 | 2021-12-07 | 广东韶钢松山股份有限公司 | Tail gas washing and absorbing device and method for mechanized clarifying tank |
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Application publication date: 20190329 |